When is Easter Day in 2015?

Choose a year that we name A.
R is the remainder of the division of A by 4.
S is the remainder of the division of A by 7.
T is the remainder of the division of A by 19.
B = 19 x T + 24
M is the remainder of the division of B by 30.
C = (2 x R) + (4 x S) + (6 x M) + 5
N is the remainder of the division of C by 7.
P = M + N

If P < 10 then Easter Day is P + 22 March.
If P > 9 then Easter Day is P - 9 April.

When is Easter Day in 2015?

I do not really know how to do this, and must admit I am not sure how to even start such a problem. If anyone could help me at least start this problem and help me along the way, that would be wonderful. Thank you in advance.

Choose a year that we name A.
R is the remainder of the division of A by 4.
S is the remainder of the division of A by 7.
T is the remainder of the division of A by 19.
B = 19 x T + 24
M is the remainder of the division of B by 30.
C = (2 x R) + (4 x S) + (6 x M) + 5
N is the remainder of the division of C by 7.
P = M + N

If P < 10 then Easter Day is P + 22 March.
If P > 9 then Easter Day is P - 9 April.

When is Easter Day in 2015?

I do not really know how to do this, and must admit I am not sure how to even start such a problem. If anyone could help me at least start this problem and help me along the way, that would be wonderful. Thank you in advance.

It's not clear why you can't follow the steps listed in the OP.

If you want to determine when Easter falls in 2015, clearly A = 2015, using the first step above.

Can you follow the second step, etc., and determine the date of Easter 2015?